function Goods() {
    this.myMaxOnScreen = 3;
    this.good = "";
    this.frequency = 0;
}

Goods.prototype.fire = function () {
    var speed = 50 - lzb_levelDirector.myCurrentLevel * 10
    this.good = lzb_kind[(Util.randomNum(0, speed))];

    if (this.good == "good-01" || this.good == "good-02" || this.good == "good-03" || this.good == "good-04") {
        lzb_projectiles.push(new GoodsFall(this.good));
    }
}

